<%@ page import="java.sql.Connection" %>
<%@ page import="java.sql.DriverManager" %>
<%@ page import="java.sql.PreparedStatement" %>
<%@ page import="java.sql.ResultSet" %>
<%@ page import="java.sql.Connection" %>
<%@ page import="com.UserBean" %>
<%--
  Created by IntelliJ IDEA.
  User: 113
  Date: 2020/10/20
  Time: 15:10
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<jsp:useBean id="username" class="com.UserBean" scope="application"></jsp:useBean>
<jsp:setProperty name="username" property="*"></jsp:setProperty>
<%
    //加载驱动
    Class.forName("com.mysql.jdbc.Driver");

    //建立连接
    String url ="jdbc:mysql://localhost:3306/book";
    Connection connection = DriverManager.getConnection(url,"root","root");
    //sql语句模板
    String sql = "insert into user (username,password,gender,age) values (?,?,?,?)";//在PreparedStatement中使用问好代替实际参数
    PreparedStatement ps =connection.prepareStatement(sql);

    //参数赋值
    UserBean user = new UserBean();
    ps.setString(1,user.getUsername());
    ps.setString(2,user.getPassword());
    ps.setInt(3,user.getGender());
    ps.setInt(4,user.getAge());


    int count = ps.executeUpdate();
    if(count > 0){
        out.print("添加成功");
    }else{
        out.print("添加失败");
    }

    response.setHeader("refresh","3;url=home.jsp");

%>
